With PythonCall Julia will be installed from within Python, like this:
First, install juliacall using the pip package manager, with
% pip install juliacall
Using ipython3 (only Python \geq 3 is supported), do: (not sure if ipython is required here, actually)
In [1]: from juliacall import Main as jl
which, on the first use only, will install the latest stable version of Julia.
(I just copied/pasted these instructions from a package of mine, for which I wrote some instructions to Python users which I think are very easy to follow, using PythonCall).